The NCR, actually, is running at least one prison, which is called Black Canyon.
interesting, didn't remember hearing about that myself.
and well, this is a suggestion topic so i might as well say something less negative.
first off, if this -was- going to be used, i would suggest that the guards be given a better set of eyes for spotting pick pockets, and act upon anyone looking in to others pockets, this would help to lower the amount of "omfg, that noob pick pocket stole my minigun! *calls gang and has them bomb the place*" and later "omfg, that noob pick pocket got us all thrown in jail for blowing him up!" you hear from gangs, which while they can be quite nasty, have a right to play just as much as a "wanna be" player killer hunter such as myself, and personally, i like FOnlines outlawish ways if anyone wants to taik about that.
as for using this to bring more "role play" around, personally i think this is a MMOG, not a game like neverwinter nights where you can really "role play", so that really does not make sense to me why this would really be a good reason to add this.
but to be honest, if you want to keep this up, you have to look at every one who will end up being locked up as well.
i tried to be less negative. cheers.
-Ulrek-